matter vocab crossword puzzle

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Across
  1. 2. something in its pure form
  2. 4. the splitting of light
  3. 6. things on the periodic table
  4. 8. acid eating metal
  5. 10. when a liquid becomes a gas
Down
  1. 1. water wearing down rock
  2. 3. the smallest particle
  3. 5. everything is made of it
  4. 7. when something becomes a liquid from a solid
  5. 9. substances together